jsp路径使用

<%
String path = request.getContextPath();
// 获得项目完全路径（假设你的项目叫MyApp，那么获得到的地址就是 http://localhost:8080/MyApp/）:
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
request.getSession().setAttribute("basePath",basePath);

%>

<script type="text/javascript">
var base = '<%=request.getSession().getAttribute("basePath")%>';
</script>